ISC BIND 9 vulnerabilities: known CVEs & security history
ISC · DNS · 19 tracked CVEs · 1 actively exploited · updated October 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all ISC BIND 9 release lines — 19 in total, with 1 actively exploited in the wild. A CVE here doesn't mean your version is affected — check ISC BIND 9's current status and the safe version to run.
Known ISC BIND 9 CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2015-5477⚡ exploited | high | 7.5 | 92% | 2015 |
| CVE-2000-1029 | high | 10 | 14% | 2000 |
| CVE-2026-5947 | high | 7.5 | 1% | 2026 |
| CVE-2026-5946 | high | 7.5 | 2% | 2026 |
| CVE-2026-3039 | high | 7.5 | 1% | 2026 |
| CVE-2026-3104 | high | 7.5 | 1% | 2026 |
| CVE-2026-1519 | high | 7.5 | 2% | 2026 |
| CVE-2022-38178 | high | 7.5 | 3% | 2022 |
| CVE-2022-38177 | high | 7.5 | 3% | 2022 |
| CVE-2026-3593 | high | 7.4 | 2% | 2026 |
| CVE-2026-5950 | medium | 5.3 | 1% | 2026 |
| CVE-2026-3592 | medium | 5.3 | 0% | 2026 |
| CVE-2022-2795 | medium | 5.3 | 2% | 2022 |
| CVE-2006-0987 | medium | 5 | 58% | 2006 |
| CVE-2000-0887 | medium | 5 | 23% | 2000 |
| CVE-2000-0888 | medium | 5 | 8% | 2000 |
| CVE-1999-0024 | medium | 5 | 5% | 1997 |
| CVE-2020-8619 | medium | 4.9 | 2% | 2020 |
| CVE-2018-5745 | medium | 4.9 | 2% | 2019 |
Is my ISC BIND 9 version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your ISC BIND 9 version → · Monitor ISC BIND 9 for new CVEs →
ISC BIND 9 vulnerabilities — frequently asked
How many known vulnerabilities does ISC BIND 9 have?
IsItPatched tracks 19 CVEs for ISC BIND 9, 1 of which is actively exploited (CISA KEV). 0 are critical-severity and 10 high-severity. These span every release line — what matters is whether the version you run is affected.
Does ISC BIND 9 have any actively-exploited vulnerabilities?
Yes — 1 ISC BIND 9 CVE is in CISA's Known Exploited Vulnerabilities catalog, meaning it is confirmed exploited in the wild. Patch it as a priority.
What is the most severe ISC BIND 9 vulnerability?
Among tracked issues, CVE-2015-5477 (HIGH, CVSS 7.5), which is actively exploited, ranks highest — a CWE-19 weakness.
Is ISC BIND 9 safe to use?
It depends on the version. The latest supported ISC BIND 9 release clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: ISC BIND 9 security status · ISC BIND 9 end-of-life · actively-exploited CVEs. Always verify against ISC's advisories — see our disclaimer.